similar to: Question on iptables

Hi list someone is trying to hack my server . Is there any way by whcih I can stop hacking of my server except iptables ? I want to stop on the basis of sip.conf account only. bcoz I can't apply iptables rules on server it's remote server of server provider and we used it for making voip call for customers. for the time been i have close all sip accounts. but can't stop for more then

Hello, fail2ban does not ban offending IP. NOTICE[29784] chan_sip.c: Registration from '"user3"<sip:1005 at asterisk-ip:5060>' failed for 'offending-IP:53417' - Wrong password NOTICE[29784] chan_sip.c: Registration from '"user3"<sip:1005 at asterisk-ip:5060>' failed for ?offending-IP:53911' - Wrong password systemctl status

Greetings all, I have been seeing a lot of [Jan 2 16:36:31] NOTICE[7519]: chan_sip.c:23149 handle_request_invite: Sending fake auth rejection for device 100<sip:100 at 108.161.145.18>;tag=2e921697 in my logs lately. Is there a way to automatically ban IP address from attackers within asterisk ? Thank you

Hello I'm using the Fail2ban. I configuration below. I want to try to prevent the continuous password. Fail2ban password that does not prevent this form. (Asterisk 1.8 / Elastix interface) What could be the problem ? Asterisk log; "Registration from '<sip:3060 at sip.x.eu;transport=UDP>' failed for 'x.x.x.x:32956' - Wrong password" Fail2ban asterisk

My server is being attached all day and fail2ban is not stopping the attack. I updated stamstamp to match fail2ban requirements. [2010-12-25 18:54:34] NOTICE[15415]: chan_sip.c:21830 handle_request_register: Registration from '"7002" <sip:7002 at x.x.x.x>' failed for '38.108.40.94' - No matching peer found [2010-12-25 18:54:34] NOTICE[15415]: chan_sip.c:21830

I need some help understanding SIP dialog. Some actor is trying to access my server, but I can't figure out what he's trying to do ,or how. I'm getting a lot of these warnings. [May 17 10:08:08] WARNING[1532]: chan_sip.c:4068 retrans_pkt: Retransmission timeout reached on transmission _zIr9tDtBxeTVTY5F7z8kD7R.. for seqno 101 With SIP DEBUG I tracked the Call-ID to this INVITE :

OK, I need a bit of help here. I'm configuring a new Asterisk 11 system and I accidentally let my firewall rules drop for a day or so. When I logged in today, I found messages like the ones below on my asterisk console. Obviously somebody was trying to take advantage of my carelessness. So can someone explain what would cause these types of messages to show up on my console? I understand

I happened to be in the cli tonight as some (208.122.57.58) initiated a simple attack - just trying to make long distance calls from outside context. Although harmless, this went on for several minutes as the idiot just used up my bandwidth with SIP messages. Here's and example: [2011-12-28 22:53:42] NOTICE[9635]: chan_sip.c:14035 handle_request_invite: Call from '' to extension

If this is a small site, I recommend you download the free version of SecAst (www.telium.ca <http://www.telium.ca> ) and replace fail2ban. SecAst does NOT use the log file, or regexes, to match etc.instead it talks to Asterisk through the AMI to extract security information. Messing with regexes is a losing battle, and the lag in reading logs can allow an attacker 100+ registration

I am working to a CentOS 6 server with nonstandard iptables system without rule for ACCEPT ESTABLISHED connections. All tables and chains empty (flush by legacy custom script) so only filter/INPUT chain has rules (also fail2ban chain): Chain INPUT (policy ACCEPT) target prot opt source destination f2b-postfix tcp -- 0.0.0.0/0 0.0.0.0/0 ACCEPT all --

Am 26.08.2018 um 15:25 schrieb TE Dukes: > Checked maillog: > > Aug 26 09:12:31 ts130 postfix/qmgr[2194]: E5B948331053: from=<fail2ban at palmettodomains.com>, size=469, nrcpt=1 (queue active) > Aug 26 09:12:31 ts130 postfix/smtp[2307]: connect to 127.0.0.1[127.0.0.1]:10024: Connection refused > Aug 26 09:12:32 ts130 postfix/smtp[2307]: E5B948331053: to=<root at

I solved the problem. "action.d/iptables-custom.conf" include only udp. service fail2ban restart Thank you. On Sun, Sep 13, 2015 at 9:17 PM, Andres <andres at telesip.net> wrote: > On 9/13/15 11:16 AM, Gokan Atmaca wrote: >> >> Hello >> >> I'm using the Fail2ban. I configuration below. I want to try to >> prevent the continuous password.

I've been getting a lot of timeouts on non-critical invite transactions. I turned on sip debug. They were the result of SIP invites like this: Retransmitting #10 (NAT) to 185.107.94.10:13057: SIP/2.0 401 Unauthorized Via: SIP/2.0/UDP 215.45.145.211:5060;branch=z9hG4bK-524287-1---zg4cfkl50hpwpv4p;received=185.107.94.10;rport=13057 From:

Hello All, my asterisk server is constantly under attack [Apr 4 06:56:00] NOTICE[21745]: chan_sip.c:25673 handle_request_register: Registration from '"4941" <sip:4941 at public_ip>' failed for '194.100.46.132 194.100.46.132:56714' - Wrong password [Apr 4 06:56:00] NOTICE[21745]: chan_sip.c:25673 handle_request_register: Registration from '"4941"

Hello, I'm running fail2ban on my centos machine. It's handling sshd and postfix, and is working quite well. From the reports I'm seeing all the atempts are from a certain registrar's region, I won't name it, and was wondering instead of blocking individual ip's if there was a way I could block with iptables the complete region of ip's. I realize this will cut off a

fail2ban might be good for this. On 04/05/2011 01:00 PM, asterisk-users-request at lists.digium.com wrote: > > Date: Tue, 5 Apr 2011 08:44:41 -0700 (PDT) > From: Steve Edwards<asterisk.org at sedwards.com> > Subject: Re: [asterisk-users] Iptables configuration to handle brute > force registrations? > > On Tue, 5 Apr 2011, Gilles wrote: > >> I'm no expert

Dear List, According to https://issues.asterisk.org/view.php?id=14905 there is a storm prevention mechanism in newer Asterisks. If i look in my logfile, i see : [2010-04-17 15:12:01] NOTICE[1190] chan_sip.c: Registration from '"xxxx" <sip:xxx at xxx.xxx.xxx.xxx>' failed for 'xx.xx.xx.xx' - Wrong password [2010-04-17 15:12:01] NOTICE[1190] chan_sip.c: Last message

I added these rules to IPTABLES to slow brute force attacks. iptables -A INPUT -p tcp --dport 22 -s my_subnet/24 -j ACCEPT iptables -A INPUT -p tcp --dport 22 -m state --state NEW -m recent --set --name SSH iptables -A INPUT -p tcp --dport 22 -m state --state NEW -m recent --update --seconds 60 --hitcount 5 --rttl --name SSH -j DROP I would like log entries when connections are dropped to see

On Wed, Aug 29, 2018 at 6:20 PM Telium Support Group <support at telium.ca> wrote: > Depending on log trolling (Asterisk security log) misses a lot, and also > depends on the SIP/PJSIP folks to not change message structure (which has > already happened numerous time). If you are comfortable hacking > chan_sip.c you may prefer to get the same messages from the AMI. It still

Hello list. I'm trying to find a way to block any ip that tries to login more than three times with the wrong password and try to log in three different extensions. For I have suffered some brute force attacks on my asterisk in the morning period. The idea would be: Any ip with three attempts without success to log into an extension is blocked. Is there any way to accomplish this directly